Apparatus for paper manufacture



in Q: @9270 Ga c. w. UNKLE APPARATUS FOR PAPER MANUFACTURE Filed May 23:1925 ATTORNEY.

Patented Oct. 4, 1927.

UNITED TIES CHARLES WILBERT UNKLE, OF BALTIMORE, OHIO.

APPARATUS FOR PAPER MANUFACTURE.

Application filed May 23, 1925. Serial No. 32,240.

The invention relates to the maufacture of paper and paper board and isparticularly directed toprocesses of applying coloring material to thepaper stock.

6 Heretofore, in the manufacture of paper and paper board, the practicehas been to insert the coloring matter in the beater from which thepaper forming material is passed through a series of chests'into thejordan and from the jordan it is pumped into a mixing-tank from whichthe stock passes onto screens and into the machine vat or vats. All ofthe material flowing from the mixer to the machine vats is of the samecolor hence but one color of paper product of a given furnish ispossible unless the surface of the product is colored at the calender byspecial appliances. Where paper or pa er board of the same furnish isdesired to be made in different colors it has been possible to producebut one color of product at a time by the unit above described,excluding the coloring at the calenders.

The object of my invention is to provide an organization whereby aplurality of papers or paperboards differing in their color may be madesimultaneously from a stock originating at a common source.

I have found that by forming compartments in the mixing tank or chestand connecting each compartment to a unit of screens and machine vatthat one coloring material may be inserted into one compartment, anothercolor in another compartmentand so on, the stock discharging from eachcompartment having the desired color so that a variety of colored paperor paper board of the same furnish may be made from stock prepared inone beater or one ply of the paper board may have one color and anotherply another color. This results not only in a large saving in time andappliances but a perfectly lined board or paper is formed in theselected color or colors.

In the accompanying drawing Figure 1 is an elevational view of part ofthe main elements in diagrammatic form of a system or organization forcarrying out myinvention, and Fig. 2 a plan view of the mixing tank andmachine vat.

In the drawings, 1 indicates the beater and 2 a chest that communicatesthrough conduit 3 with the beater. A pump 4 elevates the stock thatdischarges from the beater which the stock passes through a conduit 6into the chest, into a second chest 5, from.

into a jordan 7. A pump 8 conveys the stock from the jordan into a chest9 and elevates it through a conduit 10 into the mixing tank 11. Theconduit 10 is preferably 0 connected to one side 12 of the tank 11.

A baflie 13 extends downwardly in the tank between'its end walls, thelower edge of the bailie being spaced from the bottom of the tank, andbetween this baflie and the 65 opposite side 14 of the tank is apartition- 15 extending from end to end of the tank and from the bottomto the top thereof. The space between the partition 15 and the sidewall14 of the tank is divided by crosspartltions 16. into compartments A, B,C, or such number of compartments as there may be cylinders on the papermachine. Apertures 17 are formed in the partition 15 to form independentcommunications between 7 each compartment and the main portion D of thetank. These apertures are controlled by suitable gates or valves 18.Conduits 19, 20 and 21 communicate with-the compartments A, B and Crespectively and each conduit leads to a screen or screens 22, thelatter communicating'with a chest 23 and the chest communicating throughthe pipe 23 with the cylinder compartment C of the machine vat 24, theother compartments A and B having similar connection with the cylindercompartments A and B ofthe machine vat.

The paper forming material is inserted in the beater for the usualtreatment, the stock formed therein passing through the several chestsand the jorda'n in the usual manner and for the usual purpose, and iteventually flows into the compartment D of the mixing tank. From thiscompartment the stock flows into the compartment A, B', C or such ofthem or such others which may beprovided, as the operator choses. Thecoloring materials are added to the stock in these compartments A, B, C,and since there is no communication between those compartments after thegates are closed, one color may be added to compartment A, another tocompartment B, and another to compartment C, and so on, so that theuncolored stock entering the compartment D may dischar e from theseveral compartments A, B, in independent conduits each stream of stockbeing colored difi'erently than the others.

A three cylinder paper machine, for ex-' ample, may thus producesimultaneously paper or paper board of a selected furnish 1n threedifierentcolors. When a'change in color is desired it is only necessaryto flush out the particular compartment A, B or C and the-devices beyondit and having com munication with it.

It is thus a parent that by my method a variety of co oring -materialmay be independently applied to a given quantity 'of stock of a selectedfurnish and thereby simultaneously produce finished products ofdifferent colors.

from res ective compartments, a bafile exownwardly in the tank in spacedtending relation to the first partition and terminatmg in s acedrelation to the bottom of the tank, sald baflle being located in thereceiving end ofthe tank, and a. conduit communicating with thereceiving end of the tankat theside of the baflle remote from the firstpartition.

2. 'In a paper makin machine, a mixing tank, a partition exten ingacross the mix in tank and dividing the same into a receiving end and adischarge end, other partitions dividing the discharge end of the tankinto a plurality of compartments, the first mentioned partition having aplurality of gate control openings corresponding in number to saidcompartments and each communicating with a respective compartment, and aplurality of conduits leading individu ally from respectivecompartments; in combination with a machine vat having a plurality ofcompartments equal in number to the compartments formed in the deliveryend of the mixing tank, each of the first mentioned conduitscommunicating with a respective compartment in the machine vat.

3. In a paper makin machine, a mixing tank, a partition exten ing acrossthe mixing tank and dividing the same into a receiving end and adischarge end, other partitions dividing the discharge end of the tankinto a plurality of compartments, the

lirst mentioned partition having a pluralityof gate control openingscorresponding in number to said compartments and each com- --municatingwith a respective compartment,

a plurality of conduits leading individually from respectivecompartments, a bafile extending downwardly in the tank in spacedrelation to the first partition and terminating in spaced relation tothe bottom of the tank, said 'bafl'le being located in the receiving endof the tank, and a conduit communicating with the receiving end of thetank at the side of the baflie remote from the first partition; incombination with a machine vat having-a plurality of compartformed 1nthe delivery end of the mixing tank, each of thefirst mentioned conduitscommunicating with a respective compartment in the machine vat.

In witness whereof I hereunto sign my name this 21st da of May, 1925.

CHARLE WILBERT UNKLE.

ments equal in numberto the compartments

